Hi Mohammad,
It has nothing todo with the resizing, look at the other errors I described, these 2 things are definatly related.
In the standard slideshow for images on portfolio, he takes the last image as first, and then starts with the first image.
And the site also always adapts to the displaying size of the next image. So the site thinks it is displaying the first image, but it actually shows the last image, so it fits to the size of the first image. It took me a while to figure out, but that is the issue here. Do you get what I mean?
Cheers,
Robby